Hydrological maps
Material type: TextSeries: Studies and reports in hydrology ; 20Publication details: París : UNESCO, 1977.Description: 204 p. ; 27 cm. gráfs., tablas, mapas (algs. plegs. colors.)Subject(s):No physical items for this record
A contribution to the International hydrological decade. Apendice p. 193-204. Bibliografía al final de los capítulos
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